Truck running board



FIG. 1 is a Top, front, left side perspective view of a truck running board showing the present invention;

FIG. 2 is a partially enlarged detail view of the encircled portion illustrated in FIG. 1;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side elevation view thereof; with the left side being a mirror image;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown illustrates portions of the truck running board that form no part of the claimed design. 

CLAIM The ornamental design for an truck running board, as shown and described. 